Old carbon reservoirs were not important in the deglacial methane budget
نویسندگان
چکیده
منابع مشابه
Balancing the Deglacial Global Carbon Budget: The Hydrate Factor
The discovery that methane from dissociation of gas-hydrates could be an important factor in the global carbon cycle resolves the major discrepancy in estimates of the increase of terrestrial biomass from the Last Glacial period to the present. Carbon isotope budgeting using the marine carbon isotopic record results in an estimate centered around 500 GtC; whereas palaeovegetation reconstruction...
متن کاملEvolution of the methane budget and carbon isotopes
Centennial evolution of the atmospheric methane budget: what do the carbon isotopes tell us? K. R. Lassey, D. M. Etheridge, D. C. Lowe, A. M. Smith, and D. F. Ferretti National Institute of Water and Atmospheric Research, P.O. Box 14-901, Wellington, New Zealand CSIRO Marine and Atmospheric Research, PMB 1, Aspendale Vic. 3195, Australia Australian Nuclear Science and Technology Organisation, P...
متن کاملDissolved methane in Indian freshwater reservoirs.
Emission of methane (CH4), a potent greenhouse gas, from tropical reservoirs is of interest because such reservoirs experience conducive conditions for CH4 production through anaerobic microbial activities. It has been suggested that Indian reservoirs have the potential to emit as much as 33.5 MT of CH4 per annum to the atmosphere. However, this estimate is based on assumptions rather than actu...
متن کاملthe most important demotivating factors among efl teachers in private english language institutes in mashhad
just as motivation is important in sla research, demotivation constitutes an important factor, too. there are many studies done on demotivation and burnout of teachers. many of these studies have been conducted on one or two aspects of english instruction. consequently, there are few studies which have been done on more than two aspects of english teaching. the aim of this study is to find out ...
Centennial evolution of the atmospheric methane budget: what do the carbon isotopes tell us?
Little is known about how the methane source inventory and sinks have evolved over recent centuries. New and detailed records of methane mixing ratio and isotopic composition (CH4, CH4 and CH4) from analyses of air trapped in polar ice and firn can enhance this knowledge. We use existing bottom-up constructions of the source history, including “EDGAR”-based constructions, as inputs to a model o...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Science
سال: 2020
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.aax0504